Coolbiz Q2 Sport Stereo Touch Button Wireless Bluetooth 4.1 Headphone Earphone (Gray) Incoming call prompt (Announces incoming caller's number and lets you say "yes" to accept the call or "no" to decline.) Language:Chinese/English/Portuguese [How to change Language: Under Bluetooth pairing status, double-click the volume "+" key or double-click the touch key!] Great Sound Quality: Enriched crystal sound for both music streaming and hands free conversations. Human Engineering Design: Behind the neck and over the ear design gives you a securer fit. Ideal for all users. Sweat proof Material: The headset comes with a pair of sweat proof rubber ring which can protect the headset from being damaged by sweat and therefore increase durability of the item. Perfect for Workout: Featured with light weight, portable, and ergonomical design, this headset gives you a comfortable and stable fit for all levels of exercise.